易学是从解释《周易》经传出发而形成的一个庞大学术思想体系。易学这门古老的学问,在中华民族的发展史上留下了深刻的印迹。这种印迹有些以文字的形式保存于有关著作中,有些则以生活习惯、思维方式、性情意念形式沉积在民族群体和个 Yi-ology is a huge academic ideology formed from the interpretation of the Book of Changes. The ancient knowledge of Yi-ology has left a deep imprint on the history of the development of the Chinese nation. Some of these imprints are preserved in the writings in written form, while others are deposited in ethnic groups and in the form of habits, ways of thinking,